1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sveta_85 [38]
3 years ago
10

HELPPPP ASAPPP PLEASSSSEE

Mathematics
2 answers:
kolezko [41]3 years ago
5 0

Let dimes = d and quarters =q

D + q = 50

D= 50-q

0.10d + 0.25Q = 7.70

Replace d with 50-q:

0.10(50-q) + 0.25q = 7.70

Simplify:

5 -0.10q + 0.25q = 7.70

5 + 0.15q = 7.70

Subtract 5 from both sides:

0.15q = 2.70

Divide both sides by 0.15:

Q = 2.70 / 0.15

Q = 18

D = 50-18 = 32

There are 32 dimes and 18 quarters

Anastaziya [24]3 years ago
5 0

K12 be doing too much

You might be interested in
What is the mean of 320,294,265, and 301
Gwar [14]

adding 320,294,265 and 301=1180

4 divided by 1180=answer 295

5 0
3 years ago
Read 2 more answers
Brian runs 3 miles in 25 minutes 30 seconds, and Mary runs 4 miles in 34
Katyanochek1 [597]

Answer:

Same speed.

Step-by-step explanation:

divide Distance by speed

25.5/3=8.5mph

34/4=8.5mph

4 0
3 years ago
Patty’s gymnastics class is 5/6 of an hour long. Patty practices five different skills and spends the same amount of time on eac
s344n2d4d5 [400]

Answer:

10 minutes

Step-by-step explanation:

5/6 of an hours is 50 min. Assume x is the time she spends on each skill.

5x=50

x=10

4 0
3 years ago
A 3 foot tall globe standing next to a woman cast an 8 ft shadow. if the woman cats a shadow that is 16ft long , then how tall i
My name is Ann [436]

The woman is 6 foot tall

<h3>What is proportion?</h3>

Proportion can be defined as the mathematical comparison of two numbers.

These numbers could be numbers, elements, set or people

From the information given, we have that;

  • The globe is 3 feet and casts a shadow of 8ft
  • The woman cast a shadow of 16ft and is x feet tall

So,

if the globe is 3 foot tall and casts a shadow of 8ft

Then the woman is x foot tall to cast a shadow of 16ft

cross multiply

8x = 24

Make 'x' the subject

x = 48/ 8

x = 6 foot

Thus, the woman is 6 foot tall

Learn more about proportion here:

brainly.com/question/1781657

#SPJ1

3 0
2 years ago
What is the reason why the earth rotates
qaws [65]
The reason so many objects orbit the Sun in nearly the same plane (called the ecliptic) and in the same direction is that they all formed from this same disk.
While the planets were forming, there was not much peace in our solar system. Clumps of matter of all sizes often collided, and either stuck together or side-swiped each other, knocking off pieces and sending each other spinning. Sometimes the gravity of big objects would capture smaller ones in orbit. This could be one way the planets acquired their moons.
8 0
3 years ago
Other questions:
  • norma cut a triangle out of construction paper for an art project. the area of the triangle os 84.5 square centimeters. select t
    10·1 answer
  • A system of 2 linear equations is ___ dimensional. It is a graph of _____ lines. The solutions can be _____ solution if the grap
    10·1 answer
  • Find the five number summary of the following data set : 12,15,9,17,16,10,11,4,8,9,20,12
    6·2 answers
  • Zach listed the ways he could plant the flowers did he list all possible ways
    7·1 answer
  • A classroom has a height of 8 feet and is 30 feet long. If the volume of the room is 6,000 ft 3 , how wide is the classroom?
    6·2 answers
  • Anna is in a cave 42 feet below the cave entrance. She descends 10 feet, then ascends 15 feet. Find her new position relative to
    9·1 answer
  • Solve the equation?<br><br> 13 +w/7 = –18 ...?
    15·2 answers
  • An English teacher needs to pick 4 books to put on his reading list for the next school year. He has narrowed down his choices t
    8·1 answer
  • What is the difference of (2x+7)-(8x+5)
    9·1 answer
  • Please help me I need help
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!